
n s1_hello(){
   echo "hello,world!"
}
s1_hello


function s2_tell_who_i_am(){
  echo "Enter you name:"
  read user_name
  echo "user name is $user_name"
}
s2_tell_who_i_am

function s3_which_distro_do_i_use(){
   NAME="Beta Linux"
   echo $NAME
}
s3_which_distro_do_i_use

function  s4_view_my_cpu_arch(){
  uname -m
}
s4_view_my_cpu_arch

function s5_show_first_scsi_disk_size(){
 lsblk -l | \grep disk | \grep '^sda ' | awk '{print $4}'
}
s5_show_first_scsi_disk_size

function s6_show_main_memory_size_in_megabytes(){
  free -m |grep "Mem:" | awk '{print $2}'
}


